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wrote:

I have a JD 172 lawn tractor. After starting it up the battery light
stays on. I tried a new battery , but it still stays on. Is there an
easy why to track down the problem?
Thanks
Mike

Hi,
Three things, battery, charger which is alternator(old days it was
generator) and regulator(could be integral to alternator. Have a
multi-meter? See what the charging voltage is first. Checking the
battery with hydrometer is good too.
Tony